$A$ segment of $DNA$ molecule which codes or specifies for one polypeptide chain is called:

Which of the following is not a protein?

The compound shown in the image is a base found in $DNA$. Identify its complementary base in $DNA$ strands.

The number of hydrogen bonds between guanine and cytosine; and between adenine and thymine in $DNA$ is

According to Chargaff's rule,in a living system:

Identify the carbon atom numbered from $C_1^{\prime}$ to $C_5^{\prime}$ of the monosaccharide unit of a $DNA$ nucleotide that lacks an oxygen atom from the $-OH$ group.